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实验一 ：我也不知道这是在干什么先放一下正常的实验代码吧
list1=[1,2,3,4,5,6]
print(list1)
print(list1[3])

l1=[1,2,3]
print(l1)
l1.append(5)
p">
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                <p>[TOC]</p>
<h2 id="实验一-：我也不知道这是在干什么"><a href="#实验一-：我也不知道这是在干什么" class="headerlink" title="实验一 ：我也不知道这是在干什么"></a><strong>实验一 ：我也不知道这是在干什么</strong></h2><p>先放一下正常的实验代码吧</p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python">list1<span class="token operator">=</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">4</span><span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">,</span><span class="token number">6</span><span class="token punctuation">]</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token punctuation">[</span><span class="token number">3</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span></span></code></pre>

<pre class="line-numbers language-python" data-language="python"><code class="language-python">l1<span class="token operator">=</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">]</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>l1<span class="token punctuation">)</span>
l1<span class="token punctuation">.</span>append<span class="token punctuation">(</span><span class="token number">5</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>l1<span class="token punctuation">)</span>
l1<span class="token punctuation">.</span>append<span class="token punctuation">(</span><span class="token number">123</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>l1<span class="token punctuation">)</span>
l1<span class="token punctuation">.</span>append<span class="token punctuation">(</span><span class="token string">"good"</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>l1<span class="token punctuation">)</span>
l1<span class="token punctuation">.</span>extend<span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">7</span><span class="token punctuation">,</span><span class="token number">8</span><span class="token punctuation">,</span><span class="token number">9</span><span class="token punctuation">]</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>l1<span class="token punctuation">)</span>
l1<span class="token punctuation">.</span>extend<span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token string">"hello"</span><span class="token punctuation">,</span><span class="token string">"python"</span><span class="token punctuation">]</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>l1<span class="token punctuation">)</span>
l1<span class="token punctuation">.</span>insert<span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token string">"zhurong"</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>l1<span class="token punctuation">)</span>
l1<span class="token punctuation">.</span>insert<span class="token punctuation">(</span><span class="token number">5</span><span class="token punctuation">,</span><span class="token number">99</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>l1<span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<pre class="line-numbers language-python" data-language="python"><code class="language-python">l2<span class="token operator">=</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">,</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">]</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>l2<span class="token punctuation">)</span>
<span class="token keyword">del</span> l2<span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>l2<span class="token punctuation">)</span>
l2<span class="token punctuation">.</span>remove<span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>l2<span class="token punctuation">)</span>
l2<span class="token punctuation">.</span>pop<span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>l2<span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<pre class="line-numbers language-python" data-language="python"><code class="language-python">list1<span class="token operator">=</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">,</span><span class="token number">7</span><span class="token punctuation">,</span><span class="token number">9</span><span class="token punctuation">,</span><span class="token number">11</span><span class="token punctuation">,</span><span class="token number">13</span><span class="token punctuation">,</span><span class="token number">15</span><span class="token punctuation">]</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token punctuation">)</span>
list2<span class="token operator">=</span>list1<span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">:</span><span class="token number">5</span><span class="token punctuation">]</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list2<span class="token punctuation">)</span>
list3<span class="token operator">=</span>list1<span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">:</span><span class="token number">3</span><span class="token punctuation">:</span><span class="token number">2</span><span class="token punctuation">]</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list3<span class="token punctuation">)</span>
list4<span class="token operator">=</span>list1<span class="token punctuation">[</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token number">2</span><span class="token punctuation">]</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list4<span class="token punctuation">)</span>
list5<span class="token operator">=</span>list1<span class="token punctuation">[</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">]</span>
<span class="token keyword">print</span> <span class="token punctuation">(</span>list5<span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<pre class="line-numbers language-python" data-language="python"><code class="language-python">list1<span class="token operator">=</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">]</span>
list2<span class="token operator">=</span><span class="token punctuation">[</span><span class="token number">5</span><span class="token punctuation">,</span><span class="token number">6</span><span class="token punctuation">,</span><span class="token number">7</span><span class="token punctuation">,</span><span class="token number">8</span><span class="token punctuation">,</span><span class="token number">9</span><span class="token punctuation">]</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token operator">+</span>list2<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token operator">*</span><span class="token number">2</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token operator">&lt;</span>list2<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token operator">&lt;</span>list2 <span class="token keyword">and</span> list1<span class="token operator">></span>list2<span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<pre class="line-numbers language-python" data-language="python"><code class="language-python">list1<span class="token operator">=</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">55</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">76</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">]</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token punctuation">.</span>count<span class="token punctuation">(</span><span class="token number">3</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token punctuation">.</span>index<span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token punctuation">.</span>sort<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token punctuation">)</span>
list1<span class="token punctuation">.</span>reverse<span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>list1<span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<pre class="line-numbers language-python" data-language="python"><code class="language-python">a1<span class="token operator">=</span><span class="token punctuation">&#123;</span><span class="token string">"2019414844"</span><span class="token punctuation">,</span><span class="token string">"王静文"</span><span class="token punctuation">,</span><span class="token number">88</span><span class="token punctuation">&#125;</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>a1<span class="token punctuation">)</span>
a2<span class="token operator">=</span><span class="token punctuation">&#123;</span><span class="token number">12.3</span><span class="token punctuation">,</span><span class="token number">56.7</span><span class="token punctuation">,</span><span class="token number">88.9</span><span class="token punctuation">&#125;</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>a2<span class="token punctuation">)</span>
a3<span class="token operator">=</span><span class="token punctuation">(</span><span class="token string">"一个"</span><span class="token punctuation">)</span>
a4<span class="token operator">=</span><span class="token punctuation">(</span><span class="token string">"一个"</span><span class="token punctuation">,</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>a3<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>a4<span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<pre class="line-numbers language-python" data-language="python"><code class="language-python">a1<span class="token operator">=</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">4</span><span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">,</span><span class="token number">6</span><span class="token punctuation">,</span><span class="token number">7</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>a1<span class="token punctuation">[</span><span class="token number">5</span><span class="token punctuation">]</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>a1<span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">:</span><span class="token number">3</span><span class="token punctuation">]</span><span class="token punctuation">)</span>
a1<span class="token operator">=</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">4</span><span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">,</span><span class="token number">6</span><span class="token punctuation">,</span><span class="token number">7</span><span class="token punctuation">,</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">]</span><span class="token punctuation">)</span>
a1<span class="token punctuation">[</span><span class="token number">7</span><span class="token punctuation">]</span><span class="token punctuation">.</span>append<span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>a1<span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<pre class="line-numbers language-python" data-language="python"><code class="language-python">a1<span class="token operator">=</span><span class="token punctuation">&#123;</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">6</span><span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">,</span><span class="token number">7</span><span class="token punctuation">,</span><span class="token number">88</span><span class="token punctuation">,</span><span class="token number">109</span><span class="token punctuation">&#125;</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token builtin">len</span><span class="token punctuation">(</span>a1<span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token builtin">max</span><span class="token punctuation">(</span>a1<span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token builtin">min</span><span class="token punctuation">(</span>a1<span class="token punctuation">)</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span></span></code></pre>

<p>​    在这些代码里能很好的看出，课本内容的连贯性，但说实话我课上主要处理的还是一些脚本，及相关配置。</p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python"><span class="token comment">#coding=utf-8</span>
<span class="token keyword">import</span> hashlib
<span class="token keyword">import</span> base64
<span class="token keyword">import</span> gmpy2
<span class="token keyword">import</span> rsa
p <span class="token operator">=</span> <span class="token number">55801219744752013328353829126338788731389</span>
q <span class="token operator">=</span> <span class="token number">1306404104626383868633664968881427933</span>
e <span class="token operator">=</span> <span class="token number">65537</span>
n <span class="token operator">=</span> <span class="token number">72898942517702846572619158917269560125985151716076557250750365689783898488937</span>
d <span class="token operator">=</span> <span class="token builtin">int</span><span class="token punctuation">(</span>gmpy2<span class="token punctuation">.</span>invert<span class="token punctuation">(</span>e<span class="token punctuation">,</span><span class="token punctuation">(</span>q<span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token operator">*</span><span class="token punctuation">(</span>p<span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
key <span class="token operator">=</span> rsa<span class="token punctuation">.</span>PrivateKey<span class="token punctuation">(</span>n<span class="token punctuation">,</span>e<span class="token punctuation">,</span>d<span class="token punctuation">,</span>p<span class="token punctuation">,</span>q<span class="token punctuation">)</span>
<span class="token keyword">with</span> <span class="token builtin">open</span><span class="token punctuation">(</span><span class="token string">"flag.enc"</span><span class="token punctuation">,</span><span class="token string">"r"</span><span class="token punctuation">)</span> <span class="token keyword">as</span> f<span class="token punctuation">:</span>
    f <span class="token operator">=</span> f<span class="token punctuation">.</span>read<span class="token punctuation">(</span><span class="token punctuation">)</span>
a<span class="token operator">=</span>base64<span class="token punctuation">.</span>b64decode<span class="token punctuation">(</span>f<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>rsa<span class="token punctuation">.</span>decrypt<span class="token punctuation">(</span>a<span class="token punctuation">,</span>key<span class="token punctuation">)</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<p>​    </p>
<p>这一个脚本是处理一道RSA加密题目的，在网上找了类似的脚本，脚本不难理解，通过稍微改造就能适用问题，这个脚本的麻烦之处在于一些库的处理。</p>
<p>RSA库，base64库，gmpy2库都无法以简单的pip方式进行安装。</p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python"><span class="token keyword">from</span> PIL <span class="token keyword">import</span> Image
<span class="token keyword">with</span> <span class="token builtin">open</span><span class="token punctuation">(</span><span class="token string">"1和0的故事.txt"</span><span class="token punctuation">,</span> <span class="token string">"r"</span><span class="token punctuation">)</span> <span class="token keyword">as</span> f<span class="token punctuation">:</span>
    data <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token builtin">list</span><span class="token punctuation">(</span>i<span class="token punctuation">.</span>strip<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token keyword">for</span> i <span class="token keyword">in</span> f<span class="token punctuation">.</span>readlines<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">]</span>
<span class="token comment"># 7*7的定位标志</span>
flag <span class="token operator">=</span> <span class="token punctuation">[</span>
    <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
    <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
    <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
    <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
    <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">0</span> <span class="token number">1</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
    <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
    <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">]</span>
<span class="token punctuation">]</span>
img <span class="token operator">=</span> Image<span class="token punctuation">.</span>new<span class="token punctuation">(</span><span class="token string">"1"</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token number">25</span><span class="token punctuation">,</span> <span class="token number">25</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">for</span> i <span class="token keyword">in</span> <span class="token builtin">range</span><span class="token punctuation">(</span><span class="token builtin">len</span><span class="token punctuation">(</span>data<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
    <span class="token keyword">for</span> j <span class="token keyword">in</span> <span class="token builtin">range</span><span class="token punctuation">(</span><span class="token builtin">len</span><span class="token punctuation">(</span>data<span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
        <span class="token comment"># 左上角定位标志</span>
        <span class="token keyword">if</span> i <span class="token operator">&lt;</span> <span class="token number">7</span> <span class="token keyword">and</span> j <span class="token operator">&lt;</span> <span class="token number">7</span><span class="token punctuation">:</span>
            img<span class="token punctuation">.</span>putpixel<span class="token punctuation">(</span><span class="token punctuation">(</span>i<span class="token punctuation">,</span> j<span class="token punctuation">)</span><span class="token punctuation">,</span> flag<span class="token punctuation">[</span>i<span class="token punctuation">]</span><span class="token punctuation">[</span>j<span class="token punctuation">]</span> <span class="token operator">^</span> <span class="token number">1</span><span class="token punctuation">)</span>
        <span class="token comment"># 左下角定位标志</span>
        <span class="token keyword">elif</span> i <span class="token operator">></span> <span class="token number">17</span> <span class="token keyword">and</span> j <span class="token operator">&lt;</span> <span class="token number">7</span><span class="token punctuation">:</span>
            img<span class="token punctuation">.</span>putpixel<span class="token punctuation">(</span><span class="token punctuation">(</span>i<span class="token punctuation">,</span> j<span class="token punctuation">)</span><span class="token punctuation">,</span> flag<span class="token punctuation">[</span>i<span class="token operator">-</span><span class="token number">18</span><span class="token punctuation">]</span><span class="token punctuation">[</span>j<span class="token punctuation">]</span> <span class="token operator">^</span> <span class="token number">1</span><span class="token punctuation">)</span>
        <span class="token comment"># 右上角定位标志</span>
        <span class="token keyword">elif</span> i <span class="token operator">&lt;</span> <span class="token number">7</span> <span class="token keyword">and</span> j <span class="token operator">></span> <span class="token number">17</span><span class="token punctuation">:</span>
            img<span class="token punctuation">.</span>putpixel<span class="token punctuation">(</span><span class="token punctuation">(</span>i<span class="token punctuation">,</span> j<span class="token punctuation">)</span><span class="token punctuation">,</span> flag<span class="token punctuation">[</span>i<span class="token punctuation">]</span><span class="token punctuation">[</span>j<span class="token operator">-</span><span class="token number">18</span><span class="token punctuation">]</span> <span class="token operator">^</span> <span class="token number">1</span><span class="token punctuation">)</span>
        <span class="token keyword">else</span><span class="token punctuation">:</span>
            img<span class="token punctuation">.</span>putpixel<span class="token punctuation">(</span><span class="token punctuation">(</span>i<span class="token punctuation">,</span> j<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token builtin">int</span><span class="token punctuation">(</span>data<span class="token punctuation">[</span>i<span class="token punctuation">]</span><span class="token punctuation">[</span>j<span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token operator">^</span> <span class="token number">1</span><span class="token punctuation">)</span>
img<span class="token punctuation">.</span>resize<span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token number">500</span><span class="token punctuation">,</span> <span class="token number">500</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">.</span>show<span class="token punctuation">(</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<p>这个是一道已知01串补全二维码的脚本，在这个脚本上学到的是文件的读写和Image库作图的应用。</p>
<h2 id="实验二：虽然我也不知道我当时在干什么"><a href="#实验二：虽然我也不知道我当时在干什么" class="headerlink" title="实验二：虽然我也不知道我当时在干什么"></a><strong>实验二：虽然我也不知道我当时在干什么</strong></h2><p>今天上午的实验课，由于去年我已经安装和自学过python语言，完成课上的内容并没有花费很多时间，在完成课上的任务之外，我大部分的时间都在尝试安装并配置jupyter notebook的python环境。</p>
<p><a target="_blank" rel="noopener" href="https://www.cnblogs.com/jiangfengtomhuo/p/7987419.html">配置方案</a>在CSDN里面我找到了这个配置的方案，但是在学校机房的尝试却没能成功。在我配置环境时cmd系统报错，提示环境变量的path的配置存在问题，在我将jupyter notebook对应的地址加入path变量时，cmd又报了另一个错误。由于没有保留截图，这里也无法展示，在后来请教老师也没有得出结论，后来回到宿舍在自己和舍友电脑上配置jupyter notebook想要复现当时出现问题，然而并没有出现什么问题。</p>
<p>最后怀疑是机房电脑是win7操作系统的原因，jupyter notebook可能没有兼容较低的windows版本。</p>
<p>不过整个实验课，我确实也是重新自己配置了一遍jupyter的在线编程环境，也是有所收获。</p>
<h2 id="实验四：Python-输出语句格式控制、顺序结构及分支结构"><a href="#实验四：Python-输出语句格式控制、顺序结构及分支结构" class="headerlink" title="实验四：Python 输出语句格式控制、顺序结构及分支结构"></a><strong>实验四：Python 输出语句格式控制、顺序结构及分支结构</strong></h2><p><strong>实验目的：</strong></p>
<p>1、熟练掌握 Python 输出语句格式控制符的用法。 </p>
<p>2、熟练判断条件表达式的真假。 </p>
<p>3、熟练掌握 Python 分支结构的用法。 </p>
<p><strong>实验内容：</strong></p>
<p>1、编写程序实现：课本实例 2-27，2-28，2-29，2-30，2-31，2-32。 </p>
<p>2-27 ：</p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python">a<span class="token operator">=</span><span class="token number">99</span>
<span class="token keyword">print</span> <span class="token punctuation">(</span>a<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'%d'</span> <span class="token operator">%</span> a<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'%c'</span> <span class="token operator">%</span> a<span class="token punctuation">)</span>
b<span class="token operator">=</span><span class="token number">3.56789</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'%f'</span> <span class="token operator">%</span> b<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"b=%f"</span> <span class="token operator">%</span> b<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'%10.3f'</span> <span class="token operator">%</span> b<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'%-10.3f'</span> <span class="token operator">%</span> b<span class="token punctuation">)</span>
str1<span class="token operator">=</span><span class="token string">"Welcome to Qufu Normal University"</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>str1<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'%s'</span> <span class="token operator">%</span>str1<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"string=%s"</span> <span class="token operator">%</span>str1<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"string=%10s"</span> <span class="token operator">%</span>str1<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"string=%50s"</span> <span class="token operator">%</span>str1<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"string=%+50s"</span> <span class="token operator">%</span>str1<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"string=%-50s"</span> <span class="token operator">%</span>str1<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"a=%d,b=%f,c=%s"</span> <span class="token operator">%</span><span class="token punctuation">(</span>a<span class="token punctuation">,</span>b<span class="token punctuation">,</span>str1<span class="token punctuation">)</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<p>2-28 ：</p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python">shu1<span class="token operator">=</span><span class="token number">5</span>
shu2<span class="token operator">=</span><span class="token number">7</span>
shu3<span class="token operator">=</span>shu1<span class="token operator">*</span>shu2
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"shu1=%d,shu2=%d,shu3=%d"</span><span class="token operator">%</span><span class="token punctuation">(</span>shu1<span class="token punctuation">,</span>shu2<span class="token punctuation">,</span>shu3<span class="token punctuation">)</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span></span></code></pre>

<p>2-29  :</p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python">a<span class="token operator">=</span><span class="token string">"欢迎来到曲师大"</span>
b<span class="token operator">=</span><span class="token number">123</span>
c<span class="token operator">=</span><span class="token builtin">pow</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"a=%s,b=%d,c=%d"</span> <span class="token operator">%</span><span class="token punctuation">(</span>a<span class="token punctuation">,</span>b<span class="token punctuation">,</span>c<span class="token punctuation">)</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span></span></code></pre>

<p>2-30:</p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python"><span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'请从键盘上输入任意一个数给a变量:'</span><span class="token punctuation">)</span>
a<span class="token operator">=</span><span class="token builtin">input</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'请从键盘上输入任意一个数给b变量:'</span><span class="token punctuation">)</span>
b<span class="token operator">=</span><span class="token builtin">input</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token keyword">if</span> a<span class="token operator">></span>b<span class="token punctuation">:</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"大的数为:"</span><span class="token punctuation">,</span>a<span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<p>2-31:</p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python"><span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'请从键盘上输入任意一个数给a变量:'</span><span class="token punctuation">)</span>
a<span class="token operator">=</span><span class="token builtin">input</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'请从键盘上输入任意一个数给b变量:'</span><span class="token punctuation">)</span>
b<span class="token operator">=</span><span class="token builtin">input</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token keyword">if</span> a<span class="token operator">></span>b<span class="token punctuation">:</span>
  <span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"大的数为:"</span><span class="token punctuation">,</span>a<span class="token punctuation">)</span>
<span class="token keyword">else</span><span class="token punctuation">:</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"大的数为:"</span><span class="token punctuation">,</span>b<span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<p>2-32:</p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python"><span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'从键盘上输入一个数:'</span><span class="token punctuation">)</span>
cj<span class="token operator">=</span><span class="token builtin">int</span><span class="token punctuation">(</span><span class="token builtin">input</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">if</span> cj<span class="token operator">>=</span><span class="token number">90</span> <span class="token keyword">and</span> cj<span class="token operator">&lt;</span><span class="token number">100</span><span class="token punctuation">:</span>
  <span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'优秀'</span><span class="token punctuation">)</span>
<span class="token keyword">elif</span> cj<span class="token operator">>=</span><span class="token number">80</span><span class="token punctuation">:</span>
  <span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'良好'</span><span class="token punctuation">)</span>
<span class="token keyword">elif</span> cj<span class="token operator">>=</span><span class="token number">70</span><span class="token punctuation">:</span>
  <span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'中等'</span><span class="token punctuation">)</span>
<span class="token keyword">elif</span> cj<span class="token operator">>=</span><span class="token number">60</span><span class="token punctuation">:</span>
  <span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'及格'</span><span class="token punctuation">)</span>
<span class="token keyword">else</span><span class="token punctuation">:</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'不及格'</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<p>2、编写程序实现：分别定义一个整型、实型、字符串型变量并赋值，分别用不 </p>
<p>同的格式符控制输出。要求：</p>
<p>（1）在同一个 print 语句中同时输出三个变量的名字和值；</p>
<p>（2）一个 print 语句输出一个变量的名字和值。</p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python">num<span class="token operator">=</span><span class="token number">6</span>
decimal<span class="token operator">=</span><span class="token number">6.6</span>
string<span class="token operator">=</span><span class="token string">'6.66'</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"num=%d,decimal=%.2f,string=%s"</span> <span class="token operator">%</span><span class="token punctuation">(</span>num<span class="token punctuation">,</span>decimal<span class="token punctuation">,</span>string<span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'num=%d'</span><span class="token operator">%</span>num<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'decimal=%.2f'</span><span class="token operator">%</span>decimal<span class="token punctuation">)</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'string=%s'</span><span class="token operator">%</span>string<span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<p>3、编写程序实现：输出整数 1234 的百位以上的数字。（提示：使用整除运算程序输出 12。） </p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python">a<span class="token operator">=</span><span class="token number">1234</span>
<span class="token keyword">print</span><span class="token punctuation">(</span>a<span class="token operator">//</span><span class="token number">100</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span></span></code></pre>

<p>4、编写程序实现：定义一个整型变量并赋值，判断该数是正整数、负整数还是零。如果是正整数，输出’+’；如果是负整数，输出’-‘；如果是零，输出’0’。 </p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python">a<span class="token operator">=</span><span class="token builtin">int</span><span class="token punctuation">(</span><span class="token builtin">input</span><span class="token punctuation">(</span><span class="token string">"请输入一个数："</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">if</span> a<span class="token operator">==</span><span class="token number">0</span><span class="token punctuation">:</span>
  <span class="token keyword">print</span><span class="token punctuation">(</span><span class="token number">0</span><span class="token punctuation">)</span>
<span class="token keyword">elif</span> a<span class="token operator">></span><span class="token number">0</span><span class="token punctuation">:</span>
  <span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'+'</span><span class="token punctuation">)</span>
<span class="token keyword">else</span><span class="token punctuation">:</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'-'</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<p>5、编写程序实现：定义一个正整数变量（变量名定义为 n）并赋值，然后输出 它的奇偶性。如果奇数，结果输出为：”n 是奇数”；否则输出：”n 是偶数”。 </p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python">a<span class="token operator">=</span><span class="token builtin">int</span><span class="token punctuation">(</span><span class="token builtin">input</span><span class="token punctuation">(</span><span class="token string">"请输入一个正整数："</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">if</span> a<span class="token operator">%</span><span class="token number">2</span><span class="token operator">==</span><span class="token number">0</span><span class="token punctuation">:</span>
  <span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"%d是偶数"</span> <span class="token operator">%</span>a<span class="token punctuation">)</span>
<span class="token keyword">else</span><span class="token punctuation">:</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">"%d是奇数"</span> <span class="token operator">%</span>a<span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<p>6、编写程序实现：定义三个正整数变量并赋值，分别表示三条线段的长度，判 断这三条线段能否构成一个三角形。如果能构成三角形，则输出“yes” ，否 则输出“no”。 </p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python">a<span class="token punctuation">,</span>b<span class="token punctuation">,</span>c<span class="token operator">=</span><span class="token builtin">input</span><span class="token punctuation">(</span><span class="token string">"请输入三条边的长度"</span><span class="token punctuation">)</span><span class="token punctuation">.</span>split<span class="token punctuation">(</span><span class="token string">" "</span><span class="token punctuation">)</span>
a<span class="token operator">=</span><span class="token builtin">int</span><span class="token punctuation">(</span>a<span class="token punctuation">)</span>
b<span class="token operator">=</span><span class="token builtin">int</span><span class="token punctuation">(</span>b<span class="token punctuation">)</span>
c<span class="token operator">=</span><span class="token builtin">int</span><span class="token punctuation">(</span>c<span class="token punctuation">)</span>
<span class="token keyword">if</span> b<span class="token operator">></span>a<span class="token punctuation">:</span>
  num<span class="token operator">=</span>a
  a<span class="token operator">=</span>b
  b<span class="token operator">=</span>num
<span class="token keyword">if</span> c<span class="token operator">></span>a<span class="token punctuation">:</span>
  num<span class="token operator">=</span>a
  a<span class="token operator">=</span>c
  c<span class="token operator">=</span>num
<span class="token keyword">if</span> a<span class="token operator">*</span>a<span class="token operator">==</span><span class="token builtin">pow</span><span class="token punctuation">(</span>b<span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">)</span><span class="token operator">+</span><span class="token builtin">pow</span><span class="token punctuation">(</span>c<span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
  <span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'yes'</span><span class="token punctuation">)</span>
<span class="token keyword">else</span><span class="token punctuation">:</span>
<span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'NO'</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<p>两道老师要求用while实现的代码：</p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python">String <span class="token operator">=</span> <span class="token builtin">input</span><span class="token punctuation">(</span><span class="token string">'请先输入一个字符串：'</span><span class="token punctuation">)</span>
Len <span class="token operator">=</span> <span class="token builtin">len</span><span class="token punctuation">(</span>String<span class="token punctuation">)</span>
count <span class="token operator">=</span> <span class="token number">0</span>
flag <span class="token operator">=</span> <span class="token number">1</span>
<span class="token keyword">while</span> count <span class="token operator">&lt;</span> Len<span class="token operator">//</span><span class="token number">2</span><span class="token punctuation">:</span>
  <span class="token keyword">if</span> String<span class="token punctuation">[</span>count<span class="token punctuation">]</span> <span class="token operator">!=</span> String<span class="token punctuation">[</span>Len<span class="token operator">-</span>count<span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">]</span><span class="token punctuation">:</span>
    flag <span class="token operator">=</span> <span class="token number">0</span>
    <span class="token keyword">break</span>
 <span class="token keyword">else</span><span class="token punctuation">:</span>
    count <span class="token operator">+=</span> <span class="token number">1</span>
<span class="token keyword">if</span> flag <span class="token operator">==</span> <span class="token number">1</span><span class="token punctuation">:</span>  
    <span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'是'</span><span class="token punctuation">)</span>
<span class="token keyword">else</span><span class="token punctuation">:</span>
    <span class="token keyword">print</span><span class="token punctuation">(</span><span class="token string">'不是'</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

<p>2：用while实现斐波那契数列。</p>
<pre class="line-numbers language-python" data-language="python"><code class="language-python">flag<span class="token operator">=</span><span class="token number">0</span><span class="token punctuation">;</span>
i1<span class="token operator">=</span><span class="token number">1</span><span class="token punctuation">;</span>i2<span class="token operator">=</span><span class="token number">1</span>
<span class="token keyword">while</span> flag<span class="token operator">&lt;</span><span class="token number">20</span><span class="token punctuation">:</span>
  <span class="token keyword">print</span><span class="token punctuation">(</span>i1<span class="token punctuation">,</span>i2<span class="token punctuation">)</span>
  i1<span class="token operator">=</span>i1<span class="token operator">+</span>i2
  i2<span class="token operator">=</span>i1<span class="token operator">+</span>i2
  flag<span class="token operator">+=</span><span class="token number">1</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

                
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